Abstract: Computer-implemented systems and methods for generating specifications for construction projects. A method can be configured to generate user interfaces in order to obtain construction project details from a user. The construction project details can include what types and conditions are related to the construction project. Textual specification data is retrieved from a data store based at least in part upon the construction project details. A specification is generated based upon the retrieved textual specification data for use within a construction project.

Abstract: A casing surrounds a horizontal axis to define a cavity. The cavity has a top, a bottom, and axially front and rear ends. The casing is configured to conduct a mixture of a liquid and debris through the cavity from the front end to the rear end. Front and rear walls cap the casing at the front and rear ends. A horizontal outlet tube extends through the rear wall and defines a horizontal outlet channel with a bottom. A transversely-extending weir extends upward from the bottom of the cavity. The weir has a horizontal top edge located above the channel bottom and spaced below the top of the cavity, and further has fluid flow apertures below the channel bottom.

Abstract: A casing defines a cavity having a top, a bottom and front and rear ends. The casing is configured to conduct a liquid along a flow path through the cavity from the front end to the rear end. A holding structure, in the cavity, defines a chamber that can be filled with coalescing media. The holding structure has a top passageway through which the liquid can flow downwardly into the chamber and a rear passageway through which the liquid can flow rearwardly out of the chamber. Blocking structures constrain the flow path to extend through the top passageway into the chamber.

Abstract: A corrugated pipe 2 has a plurality of corrugation structures 10, 12 positioned adjacent one another. The corrugation structures 10, 12 comprise an inner cylindrical wall 22, two annular wall portions 28, 32 that extend outwardly from the inner cylindrical wall 22, and a bowed annular wall portion 40 that is connected to the outer ends 36, 38 of the two annular wall portions 28, 32. The corrugation structure 10, 12 includes a centroid 48, 49 and at least a portion of the inner surface 50 of the bowed wall portion 40 has a radius R1 centered on the centroid 48, 49 and at least a portion of the outer surface 52 of the bowed wall portion 40 has a radius R2 centered on the centroid 48, 49. The cavity 56 defined by the corrugation structure 10, 12 has an inner surface with an inner radius R1, R3 that is equal to or greater than one half the thickness T1 of the inner cylindrical wall 22.